mirror of https://github.com/mvt-project/mvt.git
85 lines
3.0 KiB
Python
85 lines
3.0 KiB
Python
# Mobile Verification Toolkit (MVT)
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# Copyright (c) 2021-2022 Claudio Guarnieri.
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# Use of this software is governed by the MVT License 1.1 that can be found at
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# https://license.mvt.re/1.1/
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import datetime
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import os
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from mvt.common.utils import convert_timestamp_to_iso
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from ..base import IOSExtraction
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class Filesystem(IOSExtraction):
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"""This module extracts creation and modification date of files from a
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full file-system dump.
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"""
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def __init__(self, file_path=None, base_folder=None, output_folder=None,
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fast_mode=False, log=None, results=[]):
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super().__init__(file_path=file_path, base_folder=base_folder,
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output_folder=output_folder, fast_mode=fast_mode,
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log=log, results=results)
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def serialize(self, record):
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return {
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"timestamp": record["modified"],
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"module": self.__class__.__name__,
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"event": "entry_modified",
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"data": record["path"],
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}
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def check_indicators(self):
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if not self.indicators:
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return
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for result in self.results:
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if "path" not in result:
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continue
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ioc = self.indicators.check_file_path(result["path"])
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if ioc:
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result["matched_indicator"] = ioc
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self.detected.append(result)
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# If we are instructed to run fast, we skip the rest.
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if self.fast_mode:
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continue
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for ioc in self.indicators.get_iocs("processes"):
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parts = result["path"].split("/")
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if ioc["value"] in parts:
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self.log.warning("Found known suspicious process name mentioned in file at path \"%s\" matching indicators from \"%s\"",
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result["path"], ioc["name"])
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result["matched_indicator"] = ioc
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self.detected.append(result)
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def run(self):
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for root, dirs, files in os.walk(self.base_folder):
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for dir_name in dirs:
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try:
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dir_path = os.path.join(root, dir_name)
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result = {
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"path": os.path.relpath(dir_path, self.base_folder),
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"modified": convert_timestamp_to_iso(datetime.datetime.utcfromtimestamp(os.stat(dir_path).st_mtime)),
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}
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except Exception:
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continue
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else:
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self.results.append(result)
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for file_name in files:
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try:
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file_path = os.path.join(root, file_name)
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result = {
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"path": os.path.relpath(file_path, self.base_folder),
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"modified": convert_timestamp_to_iso(datetime.datetime.utcfromtimestamp(os.stat(file_path).st_mtime)),
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}
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except Exception:
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continue
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else:
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self.results.append(result)
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